Bona-Oma, or Bona Dea. A Roman goddess, the patroness of female Initiates and Occultists. Called also Fauna after her father Faunus. She was worshipped as a prophetic and chaste divinity, and her cult was confined solely to women, men not being allowed to even pronounce her name. She revealed her oracles only to women, and the ceremonies of her Sanctuary (a grotto in the Aventine) were conducted by the Vestals, every 1st of May. Her aversion to men was so great that no male person was permitted to approach the house of the consuls where her festival was sometimes held, and even the portraits and the busts of men were carried out for the time from the building. Clodius, who once profaned such a sacred festival by entering the house of Caesar where it was held, in a female disguise, brought grief upon himself. Flowers and foliage decorated her temple and women made libations from a vessel (mellarium) full of milk. It is not true that the mellarium contained wine, as asserted by some writers, who being men thus tried to revenge themselves.
Source: H.P.Blavatsky - The Theosophical Glossary